Thunder, a provider of smart device platform technology, began trading at the Shenzhen Stock Exchange on Dec. 10 after raising 581.8 million yuan, or $88 million, by selling 25 million shares at 23.27 yuan each. Its stock price has gained nearly 10-fold since, ending at a post-listing closing high of 226.02 yuan today and bearing a triple-digit price-earnings ratio.

Thunder’s first-half revenue and net profit was 268 million yuan and 67.7 million yuan, or $40.7 million and $10.3 million. Clients include Intel, Microsoft, Mozilla and ARM, the company says.

Mainland China has been one of the world’s fastest-growing sources of new billionaires in the past decade.

China’s CSI index closed up by 2.9% today on hopes that a report showing the slowest GDP growth here since 2009 in the fourth quarter of last year would prod the government into action to stimulate the economy. (See related story here.)